Pachymeters are equipped with a traditional display that can measure the thickness of the patient’s cornea. Using a type of ultrasonic transmitter, it contains a small, long device that touches the cornea in order to gain an accurate reading. Most pachymeters are in the form of a thick pen, with the tip coming to a dull point that touches the patient’s cornea. The other part of the device resembles a small tester, with a screen that offers readings based on the thickness of the cornea.
Pachymeters are essential for testing whether or not the patient’s eye has glaucoma, as certain cornea thicknesses can cause damage or further irritability to the eye. The pachymeter takes accurate readings using sound waves, which measure the surface of the cornea and test its thickness. Some pachymeters are more portable than others, but they all provide advanced ways to digitally read the thickness of the cornea in order to provide an up-to-date assessment of the patient’s eye health.
How pachymeters work
Pachymeters measure the thickness of the cornea in a unit known as micrometers, which is how the pachymeter can assess the eye. It uses an ultrasonic device to touch the cornea. Advanced pachymeters use CWF instead, which is another type of sound-based power wave that can read the depth thickness a lot faster.
This process of using sound waves to measure the thickness of the cornea is connected to a fast computer, which can read the results in real-time and offer the examiner an insight into what’s going on around the eye. The machine also has the ability to confirm that the readings are accurate. Pachymeters are also useful for measuring a patient’s changes in their corneal structure over time, and can be a great help for an ophthalmologist to see if any medical changes are being made.
Pachymeters are traditionally used like a pen to measure the cornea’s thickness, and often resemble a long pregnancy test. Newer pachymeters are devices that can digitize the cornea’s readings, and are also able to superimpose the readings over time to see if any changes in the cornea have been made. They can also measure other types of structures, such as air bubbles that may form on the cornea.
- AIT Industries
- Walmon Instrument Group
- Quantel Medical
- Micro Medical Devices
- Sonomed Escalon
- Ophthalmic World, LLC
- Tomey USA
- DGH Technlolgy, Inc.